As has been said, the exact position of heaven does not appear to have been located, but it may be said in a general sense that the Egyptians believed it to be placed somewhere above the sky. They called it Pet, which expression they used in contradistinction to the word Nu, meaning sky. The heavens and the sky they regarded as a slab, each end of which rested on a support formed of the two mountains Bakhau and Manu, the mountains of sunrise and sunset. In primitive times heaven was conceived as consisting of two portions, the east and the west; but later it was divided into four parts, each of which was placed under the sovereignty of a god. This region was supported by four pillars, each of which again was under the direction of a deity, and at a comparatively late period an extra pillar was added to support the middle. In one myth we find the heavens spoken of as representing a human head, the sun and moon forming the eyes, and the supports of heaven being formed by the hair. The gods of the four quarters who guarded the original pillars were those deities known as Canopic (see p. 28), or otherwise called the Children of Horus. In heaven dwelt the great god Ra, who sat upon a metal throne, the sides of which were embossed with the faces of lions and the hoofs of bulls. His train or company surrounded him, and was in its turn encircled by the lesser companies of deities. Each of the gods who presided over the world and the Duat had also his own place in heaven. Beneath the lesser gods again came beings who might well be described as angelical. First among these were the Shemsu-heru, or followers of Horus, who waited upon the sun-god, and, if necessary, came to his protection. They were regarded as being essential to his welfare. Next came the Ashemu, the attributes of which are unknown, and after those the Henmemet, perhaps souls who were to become human beings, but their status is by no means clear. They were supposed to live upon grain and herbs. There were also beings called Utennu and Afa, regarding the characteristics of which absolutely nothing is known. Following these came an innumerable host of spirits, souls and so forth, chiefly of those who had once dwelt upon the earth, and who were known collectively as 'the living ones.' The Egyptians thought these might wander about the earth and return to heaven at certain fixed times, the idea arising probably because they wished to provide a future for the body as well as for the soul and spirit. As explained previously, the gods of heaven had their complements or doubles on earth, and man in some degree was supposed to partake of this dual nature. The Egyptian conception of heaven altered slowly throughout the centuries. An examination of the earliest records available shows that the idea of existence after death was a sort of shadowy extension of the life of this world. Such an idea is common to all primitive races. As they progressed, however, this conception